Finding the Fourth Proportional to 1,216,587.84, 1,824,985.55 and 318,028.13
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Solution
The fourth proportional to 1,216,587.84, 1,824,985.55 and 318,028.13 is: 477,069.33
Step by Step Solution
- Step 1: Write the proportion equation
1,216,587.84 : 1,824,985.55 = 318,028.13 : x - Step 2: Convert to fraction form
1,216,587.84/1,824,985.55 = 318,028.13/x - Step 3: Cross multiply
1,216,587.84x = 1,824,985.55 × 318,028.13 - Step 4: Simplify right side
1,216,587.84x = 580,396,740,257.36 - Step 5: Solve for x
x = 580,396,740,257.36/1,216,587.84 - Step 6: Final answer
x = 477,069.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.